live at the pentagon. this test is wore i sor woresom. >> one of the biggest problems right now is whether or not north korea really has achieved a miniaturid bomb. they say they set off a smaller, more lethal explosive, if you will. miniaturization is key. that means they could possibly put a small war head on a missile sooner than expected and deliver it to a target. now the cia, pentagon, all has to look at this to determine what they set off and essentially now work backward. if it was a miniaturized bomb, what did it take north korea to get there? where did they get the technology, the engineering, the expertise, the money to do it? they will look at what it would have taken north korea to achieve what they say they achieved and try to figure out how they did it and who might have helped them. zoraida. >> has theyou say there. there has been of skepticism in where this program is right now. >> the u.s. has been skeptical for years. in december, they successfully launched a long-range ballistic missile